Home / 23,102.06-31,880.80-13,030.47

Finding the Fourth Proportional to 23,102.06, 31,880.80 and 13,030.47

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Solution

The fourth proportional to 23,102.06, 31,880.80 and 13,030.47 is: 17,982.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,102.06 : 31,880.80 = 13,030.47 : x
  2. Step 2: Convert to fraction form
    23,102.06/31,880.80 = 13,030.47/x
  3. Step 3: Cross multiply
    23,102.06x = 31,880.80 × 13,030.47
  4. Step 4: Simplify right side
    23,102.06x = 415,421,583.42
  5. Step 5: Solve for x
    x = 415,421,583.42/23,102.06
  6. Step 6: Final answer
    x = 17,982.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.